there have been a bunch, but here are the highlights:

Capitol Beach Speedway, Lincoln NE (1st track I ever attended)
Sunset speedway, Omaha NE
Playland Park, Council Bluffs IA
Midwest Speedway, Lincoln NE
Mid-America Fairgrounds, Topeka KS
Shawnee Speedway, Topeka KS
Sioux Empire Fairgrounds, Sioux Falls SD
Florida State Fairgrounds, Tampa FL
Tulsa Speedway, Tulsa OK
American Royal Arena, Kansas City MO
Lemoore Speed Bowl, Lemoore CA
16th Street Speedway, Indianapolis IN
Capitol Speedway, Holts Summit MO
Tulsa Fairgrounds Motorplex, Tulsa OK
Red Hill Raceway, Sumner IL
Manzanita Speedway, Phoenix AZ

later,

Bob Mays